86569883 ÷ 288 
The aim is to understand the frequency of 288 in 86569883.

Advancing to step 1:
8 divided by 288 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 288

Moving on to step 2:
86 divided by 288 is 0 with a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Bring next digit (5) of the dividend behind the 86 and repeat the process: 865 / 288

On to step 3:
If we divide 865 by 288, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 864 from 865, we get 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 288

Moving on to step 4:
16 divided by 288 is 0 with a remainder of 16.
The next digit of our result is 0. 
Result so far: 30.0
If we take 0 away from 16, we end up with 16.
Include the next digit (9) from the dividend after 16, then repeat: 169 / 288

Step 5:
If we divide 169 by 288, we get 0 and a remainder of 169.
Record the quotient 0 as the next digit in the result. 
Result so far: 300.0
If we take 0 away from 169, we end up with 169.
Append the next digit (8) from the dividend to 169 and continue with: 1698 / 288

Moving on to step 6:
1698 divided by 288 is 5 with a remainder of 258.
The next digit of our result is 5. 
Result so far: 3005.0
Subtracting 1440 from 1698 leaves us with 258.
Bring next digit (8) of the dividend behind the 258 and repeat the process: 2588 / 288

Going ahead to step 7:
If we divide 2588 by 288, we get 8 and a remainder of 284.
Use 8 as the next digit of our solution. 
Result so far: 30058.0
The remainder is 284 after subtracting 2304 from 2588.
Append the next digit (3) from the dividend to 284 and continue with: 2843 / 288

Going ahead to step 8:
288 can be fit into 2843 9 times, resulting in a remainder of 251.
Put 9 as the next digit of the answer. 
Result so far: 300589.0
If we take 2592 away from 2843, we end up with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Moving on to step 9:
2510 divided by 288 is 8 with a remainder of 206.
Use 8 as the next digit of our solution. 
Result so far: 300589.8
Subtract 2304 from 2510 to get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Step 10:
If we divide 2060 by 288, we get 7 and a remainder of 44.
Record the quotient 7 as the next digit in the result. 
Result so far: 300589.87
The remainder is 44 after subtracting 2016 from 2060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 11:
288 can be fit into 440 1 times, resulting in a remainder of 152.
Use 1 as the next digit of our solution. 
Result so far: 300589.871
Subtracting 288 from 440 leaves us with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Moving on to step 12:
288 can be fit into 1520 5 times, resulting in a remainder of 80.
Record the quotient 5 as the next digit in the result. 
Result so far: 300589.8715
Deduct 1440 from 1520 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 13:
If we divide 800 by 288, we get 2 and a remainder of 224.
Write down 2 as next digit of the result. 
Result so far: 300589.87152
Subtracting 576 from 800 leaves us with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Moving on to step 14:
288 can be fit into 2240 7 times, resulting in a remainder of 224.
Write down 7 as next digit of the result. 
Result so far: 300589.871527
Subtract 2016 from 2240 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Let's proceed to step 15:
When dividing 2240 by 288, we get 7 with a remainder of 224.
The number 7 becomes the next digit in our result. 
Result so far: 300589.8715277
The remainder is 224 after subtracting 2016 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

The final result is 300589.8715277 with a remainder of 2.24e-06.